CN114763678A - Dyeing method of polyester fabric for high-color-fastness luggage fabric - Google Patents

Dyeing method of polyester fabric for high-color-fastness luggage fabric Download PDF

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Publication number
CN114763678A
CN114763678A CN202210405215.6A CN202210405215A CN114763678A CN 114763678 A CN114763678 A CN 114763678A CN 202210405215 A CN202210405215 A CN 202210405215A CN 114763678 A CN114763678 A CN 114763678A
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dyeing
polyester fabric
fabric
fastness
color
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陈海勇
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Shengshan Group Co ltd
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Shengshan Group Co ltd
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/16General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dispersed, e.g. acetate, dyestuffs
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/653Nitrogen-free carboxylic acids or their salts
    • D06P1/6533Aliphatic, araliphatic or cycloaliphatic
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/673Inorganic compounds
    • D06P1/67383Inorganic compounds containing silicon
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/34Material containing ester groups
    • D06P3/52Polyesters
    • D06P3/54Polyesters using dispersed dyestuffs
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/02After-treatment
    • D06P5/04After-treatment with organic compounds
    • D06P5/08After-treatment with organic compounds macromolecular

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  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
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Abstract

The invention relates to the technical field of polyester fabric dyeing methods, and discloses a dyeing method of a polyester fabric for high-color-fastness luggage fabric, which comprises the following steps: soaking the polyester fabric into a dye solution for dyeing, heating up from room temperature at a heating rate of 0.5-1 ℃/min, then carrying out heat preservation treatment at 130-140 ℃ for 20-30 min, and finally cooling to room temperature at a cooling rate of-6 to-1 ℃/min; the dye solution comprises disperse dye, acetic acid and a leveling agent. According to the invention, the existing dyeing process is optimized, the color fastness performance of the polyester fabric is improved to reach the European standard (ISO105B02) level 5, the additional value of the case fabric is improved, and better economic benefit is obtained.

Description

Dyeing method of polyester fabric for high-color-fastness luggage fabric
Technical Field
The invention relates to the technical field of polyester fabric dyeing methods, in particular to a dyeing method of a polyester fabric for high-color-fastness luggage fabric.
Background
The terylene has excellent setting performance, and flat, fluffy or pleated forms and the like generated after the terylene yarn or the fabric is set can be enduringly unchanged after being washed for many times in use. Terylene is also known as Terylene, and Americans are also known as Dacron. When it appears on the hong Kong market in China, it is well known that people translate it into "sure" according to the word Cantonese. The terylene is the simplest of three synthetic fibers and has lower price. In addition, the novel rubber belt has the characteristics of firmness, durability, good elasticity, difficult deformation, corrosion resistance, insulation, stiffness, easy washing, quick drying and the like, and is popular among people. The high-density polyester fabric is also popular with consumers as a case fabric, but the dye is not easy to permeate into the fiber in the dyeing process of the high-density polyester fabric, the coloring rate of the fiber is poor, the durable color fastness of the fabric can only reach 3-4 grades and cannot meet the use requirement, so the price of the fabric is influenced due to poor quality, and the added value of the product is low.
The dyeing percentage of a fiber is also called the dye uptake percentage, and specifically refers to the ratio of the amount of dye that is loaded onto the fiber during the dyeing process to the total amount of dye that is used. The dyeing rate of the fiber is not only related to the characteristics of the fiber, but also has great relation with the dye type, the pH value of the dye solution, the dyeing temperature, the heat preservation time and the dyeing rate in the dyeing process. The higher the coloring rate of the fiber, the more appropriate the dyeing condition is, the better the control of the cost is, and the fabric can be ensured in the aspect of color fastness. The high-density polyester fabric with higher color fastness is more widely applied in the field of bags and suitcases, and the added value and the economic benefit of the product are higher.
The Chinese patent with publication number CN111455700A discloses a method for dyeing and finishing a cationic polyester fabric, which comprises the following steps of: desizing; reducing the alkali; preparing a dye, namely compounding a disperse dye and a cationic dye; dyeing by a two-step method at high temperature and high pressure in one bath; soaping; reduction cleaning; and (6) shaping. The dyeing method has the defects that the problem that the high-density polyester fabric for the case fabric is difficult to dye is not solved, although two dyes are compounded and the dyeing process is improved, the color fastness of the dyed polyester fabric is only 3-4 grades.
Disclosure of Invention
In order to solve the problem that the high-density polyester fabric for the luggage fabric is difficult to dye, the invention provides a dyeing method of the polyester fabric for the luggage fabric with high color fastness, which improves the color fastness performance to reach the European standard (ISO105B02) level 5 by optimizing the existing dyeing process, improves the added value of the fabric and obtains better economic benefit.
The specific technical scheme of the invention is as follows: the invention provides a dyeing method of polyester fabric for high-color-fastness luggage fabric, which comprises the following steps: immersing the polyester fabric into a dye solution for dyeing, heating up from room temperature at a heating rate of 0.5-1 ℃/min, then carrying out heat preservation treatment at 130-140 ℃ for 20-30 min, and finally cooling to room temperature at a cooling rate of-6-1 ℃/min; the dye solution comprises disperse dye, acetic acid and a leveling agent.
The terylene belongs to polyester fibers, and because the terylene has a compact structure, high crystallinity and polymerization degree and strong hydrophobicity, and is difficult to obtain a good dyeing effect at normal temperature and normal pressure, in order to obtain good dyeing rate of the terylene luggage fabric, the invention enables the disperse dye to be effectively adsorbed into the amorphous region of the polyester fibers at a certain temperature by optimizing the dyeing process. When the polyester fiber is at about 130 ℃, the chain segment moves violently, the intermolecular gap is opened, and the dye can be quickly adsorbed into the amorphous area of the fiber. The solubility and the high-temperature dispersion stability of the disperse dye can be optimized by slowly heating (the heating rate is 0.5-1 ℃/min); after the temperature is raised to 130-140 ℃, the temperature is kept for a certain time, and the dye is absorbed into the amorphous area of the fiber; and then cooling to room temperature to shrink the amorphous area of the fiber, so that dye molecules are fixed in the fiber, and the fiber is dyed to obtain firm and deep color. The dye molecules can be ensured to have sufficient time to permeate into the interior of the polyester fiber and be firmly fixed in an amorphous area, and the microscopic combination can ensure that the polyester fabric has better stability when being subjected to the actions of washing, solarization, friction and the like, thereby ensuring that the polyester fabric has relatively higher dyeing fastness.
In addition, a pH buffer system is added into the disperse dye to adjust the pH value of the dye solution and improve the dyeing uniformity, and in addition, a proper amount of leveling agent is added into the dye bath to improve the solubility of the disperse dye and control the dye-uptake rate at the same time, so that the phenomenon of uneven dyeing is avoided. In order to improve the color fastness performance of the existing product to reach the 5-grade European standard (ISO105B02), improve the additional value of the fabric, and influence the color fastness by the dye type, dyeing temperature, heat preservation time, dyeing speed and the like in the dyeing method, the high-density polyester fabric has the optimal color fastness under the dyeing condition of the invention.
Preferably, the polyester fabric isThe gram weight is 200-400 g/m2
Preferably, the pH value of the dye liquor is 4-6.
Experiments show that the dye with the pH value of 4-6 has excellent dispersion stability, excellent color and absorption of the disperse dye and optimal dyeing degree and fixation rate. Moreover, the weak acid environment is maintained in the system, so that the disperse dye is prevented from being hydrolyzed or chromophoric groups are prevented from being reduced.
Preferably, the bath ratio of the dye liquor is 1: 5 to 10.
Preferably, the temperature reduction is as follows: the temperature is reduced to 90-100 ℃ from 130-140 ℃ at a cooling rate of-3 to-1 ℃/min, and then the temperature is reduced to room temperature at a cooling rate of-6 to-4 ℃/min.
The temperature reduction process is performed at first at a slow speed and then at a fast speed, so that the shrinkage of the amorphous area of the polyester fiber can be regulated and controlled, and dye molecules can be better fixed in the fiber.
Preferably, the dyeing method further comprises a surface pretreatment step of the polyester fabric and a dyeing post-treatment step of the polyester fabric.
Preferably, the surface pretreatment step of the polyester fabric comprises the following steps: dispersing sesbania powder and trehalose in water, adding nano titanium dioxide particles, performing ultrasonic treatment, adding succinic anhydride and citric acid, stirring and reacting at 60-90 ℃ for 2-6 hours to obtain a modified nano titanium dioxide hydrosol; and (3) soaking the polyester fabric into the modified nano titanium dioxide hydrosol in a dark place, keeping the temperature at 30-40 ℃ for 20-40 min, and then taking out and drying.
The surface pretreatment of the polyester fabric before dyeing can improve the dye uptake of disperse dye, the modified nano titanium dioxide hydrosol can form a rough and uneven surface on the surface of the polyester fabric, the specific surface area of dyeing is increased, and the effect of deepening is achieved. The nano titanium dioxide also has good ultraviolet-proof functional characteristics and can improve the added value of polyester fabrics, but the compatibility between the nano titanium dioxide and the polyester fabrics is poor, and the prepared hydrosol utilizes the complexing adsorption effect and the crosslinking fixation effect of sesbania powder aqueous solution to improve the dispersibility and the compatibility. The addition of trehalose can promote disperse dyes to enter gaps among polyester molecules for dyeing, and the severe movement of molecular chains is helpful for the permeation of dye molecules because the glass transition temperature of trehalose is lower than that of polyester. In addition, the polyester fabric after surface treatment can adsorb disperse dyes more easily, and the hydrogen bond acting force between hydroxyl groups rich on the surface and polar groups (such as hydroxyl groups, amino groups and the like) in the molecules of the disperse dyes is also beneficial to improving the dye uptake.
Preferably, the particle size of the nano titanium dioxide particles is not more than 100 nm; the mass ratio of the sesbania powder to the trehalose to the water is 1-3: 0.5-1.5: 100 to 150 parts; the sesbania powder, the nano titanium dioxide particles, the succinic anhydride and the citric acid are mixed in a mass ratio of 10: 0.4-1: 1-3: 0.5 to 2.
The particle size of the nano titanium dioxide particles can influence the surface pretreatment effect of the polyester fabric, and the larger the particle size is, the more adverse the combination stability and the dye-uptake uniformity are, and the appearance quality of the polyester is influenced. In addition, the addition proportion among the raw materials influences the binding performance among substances, and also influences the effect of the disperse dye molecules entering the interior of the polyester molecules to realize effective dyeing, so that the dye-uptake and the color fastness are improved.
Preferably, the dyeing post-treatment step of the polyester fabric comprises the following steps: and (3) soaking the dyed polyester fabric into a mixed solution of trifluoroethylene acrylate, acrylamide, citric acid, magnesium acetate and water, heating to 70-80 ℃, preserving heat for 1-3 hours, and then taking out the polyester fabric and drying.
The dyeing post-treatment step can improve the color fastness of the polyester fabric, and the hyperbranched polymer is generated by in-situ crosslinking reaction on the surface of the fabric, so that the escape of dye molecules in the states of washing, solarization, friction, sweat stain and the like is reduced, and the dyeing fastness is improved. And, through selecting for use low refractive index fluorine-containing resin at polyester fiber surface film forming, reduce the refracting index, have obvious deepening effect to dyeing fabric look outward appearance, can also avoid disperse dyestuff sublime from polyester fabric in the heat setting to give polyester fabric surface hydrophobicity, further promote polyester fabric's dyeing fastness.
Preferably, the mass ratio of the trifluoroethylene acrylate to the acrylamide to the citric acid to the magnesium acetate to the water is 5-10: 1-4: 2-5: 0.1-1: 200-300.
Compared with the prior art, the invention has the following advantages:
(1) by optimizing the existing dyeing process, the color fastness performance is improved to reach the 5-grade European standard (ISO105B02), the additional value of the fabric is improved, and better economic benefit is obtained;
(2) the surface pretreatment of the polyester fabric before dyeing can improve the dye uptake of disperse dyes, and the nano titanium dioxide also has good anti-ultraviolet functional characteristics and can improve the additional value of the polyester fabric;
(3) the dyeing post-treatment step can improve the color fastness of the polyester fabric, low-refractive-index fluorine-containing resin is selected to have a darkening effect on dyed fabrics, and the polyester fabric is endowed with surface hydrophobicity.
Detailed Description
The present invention will be further described with reference to the following examples.
General examples
A dyeing method of polyester fabric for high-color-fastness luggage fabric comprises the following steps: the gram weight of the steel is 200-400 g/m2The polyester fabric is immersed in the dye liquor for dyeing, the bath ratio is 1: 5-10, adjusting the pH value to 4-6, firstly heating from room temperature at a heating rate of 0.5-1 ℃/min, then carrying out heat preservation treatment at 130-140 ℃ for 20-30 min, finally cooling to 90-100 ℃ at a cooling rate of-3-1 ℃/min, and then cooling to room temperature at a cooling rate of-6-4 ℃/min; the dye solution comprises disperse dye, acetic acid and a leveling agent.
In addition, the dyeing method can also comprise a surface pretreatment step of the polyester fabric and a dyeing post-treatment step of the polyester fabric.
The surface pretreatment step of the polyester fabric comprises the following steps: dispersing sesbania powder and trehalose in water, wherein the mass ratio of the sesbania powder to the trehalose to the water is (1-3): 0.5-1.5: 100 to 150 parts; then adding nano titanium dioxide particles with the particle size of not more than 100nm, performing ultrasonic treatment, adding succinic anhydride and citric acid, reacting for 2-6 hours at 60-90 ℃ while stirring, wherein the mass ratio of sesbania powder to nano titanium dioxide particles to succinic anhydride to citric acid is 10: 0.4-1: 1-3: 0.5-2, obtaining the modified nano titanium dioxide hydrosol; and (3) soaking the polyester fabric into the modified nano titanium dioxide hydrosol in a dark place, keeping the temperature at 30-40 ℃ for 20-40 min, and then taking out and drying.
The dyeing post-treatment step of the polyester fabric comprises the following steps: and (2) mixing the following components in a mass ratio of 5-10: 1-4: 2-5: 0.1-1: 200-300 parts of acrylic acid trifluoroethylene ester, acrylamide, citric acid, magnesium acetate and water are mixed and fully stirred, the dyed polyester fabric is immersed into the mixed solution, the temperature is raised to 70-80 ℃, the temperature is kept for 1-3 hours, and then the polyester fabric is taken out and dried.
Example 1
A dyeing method of polyester fabric for high-color-fastness luggage fabric comprises the following steps: the gram weight is 300g/m2The polyester fabric is immersed in the dye liquor for dyeing, the bath ratio is 1: and 6, adjusting the pH to be about 4.6, wherein the used dye solution comprises 0.12% of 2BLN disperse blue, 0.24% of S-4RL orange, 0.046% of S-5BL ruby, 0.5% of acetic acid and 0.5% of leveling agent (the model of the company Ludao is ERX) according to the mass fraction, and then carrying out dyeing temperature-raising and heat-preserving treatment according to the following table 1.
TABLE 1
Figure BDA0003601545420000041
Figure BDA0003601545420000051
Example 2
A dyeing method of polyester fabric for high-color-fastness luggage fabric comprises the following steps: the gram weight is 350g/m2The polyester fabric is immersed into the dye liquor for dyeing, and the bath ratio is 1: the pH was adjusted to about 5.1, and the dye solution used comprised, in mass fraction, 0.12% of 2BLN disperse blue, 0.24% of S-4RL orange, 0.046% of S-5BL ruby, 0.5% of acetic acid, 0.5% of a leveling agent (Ludafu, model ERX), followed by dyeing, temperature raising and heat preservation treatment according to Table 2.
TABLE 2
Temperature of Rate of temperature rise Heat preservation
65℃—80℃ 0.5℃/min /
80℃—100℃ 0.8℃/min /
100℃—120℃ 0.8℃/min /
120℃—130℃ 1℃/min 130℃*30min
130℃—91℃ -2℃/min /
91 ℃ to room temperature -5℃/min
Example 3
The difference from example 1 is that: the dyeing method also comprises a surface pretreatment step of the polyester fabric and a dyeing post-treatment step of the polyester fabric.
A dyeing method of polyester fabric for high-color-fastness luggage fabric comprises the following steps:
dispersing sesbania powder and trehalose in water, wherein the mass ratio of the sesbania powder to the trehalose to the water is 2: 1: 120 of a solvent; then adding nano titanium dioxide particles with the particle size of 50nm, performing ultrasonic treatment, adding succinic anhydride and citric acid, stirring and reacting at 80 ℃ for 3 hours, wherein the mass ratio of sesbania powder to nano titanium dioxide particles to succinic anhydride to citric acid is 10: 0.8: 2: 1, obtaining modified nano titanium dioxide hydrosol; the gram weight is 300g/m2And soaking the polyester fabric into the modified nano titanium dioxide hydrosol in a dark place, keeping the temperature at 30 ℃ for 30min, and then taking out and drying.
And (3) soaking the polyester fabric subjected to surface pretreatment into a dye solution for dyeing, wherein the bath ratio is 1: and 6, adjusting the pH to be about 4.6, wherein the used dye solution comprises 0.12% of 2BLN disperse blue, 0.24% of S-4RL orange, 0.046% of S-5BL ruby, 0.5% of acetic acid and 0.5% of leveling agent (ERX) in percentage by mass, then carrying out dyeing, temperature rising and heat preservation treatment according to the table 1, taking out the polyester fabric and drying the polyester fabric.
And (2) mixing the components in a mass ratio of 8: 2: 4: 0.3: mixing 250% of acrylic acid trifluoroethylene ester, acrylamide, citric acid, magnesium acetate and water, fully stirring, immersing the dyed polyester fabric into the mixed solution, heating to 70 ℃, keeping the temperature for 3 hours, taking out the polyester fabric, and drying.
Example 4
The difference from example 1 is that: the dyeing method also comprises a surface pretreatment step of the polyester fabric and a dyeing post-treatment step of the polyester fabric.
A dyeing method of polyester fabric for high-color-fastness luggage fabric comprises the following steps:
dispersing sesbania powder and trehalose in water, wherein the mass ratio of the sesbania powder to the trehalose to the water is 3: 1: 150; then adding nano titanium dioxide particles with the particle size of 70nm, performing ultrasonic treatment, adding succinic anhydride and citric acid, reacting for 3 hours at 80 ℃ while stirring, wherein the mass ratio of sesbania powder to nano titanium dioxide particles to succinic anhydride to citric acid is 10: 0.5: 2: 2, obtaining modified nano titanium dioxide hydrosol; the gram weight is 300g/m2And soaking the polyester fabric into the modified nano titanium dioxide hydrosol in a dark place, keeping the temperature at 35 ℃ for 30min, and then taking out and drying.
And (3) soaking the polyester fabric subjected to surface pretreatment into a dye solution for dyeing, wherein the bath ratio is 1: and 6, adjusting the pH to be about 4.6, wherein the used dye solution comprises 0.12% of 2BLN disperse blue, 0.24% of S-4RL orange, 0.046% of S-5BL ruby, 0.5% of acetic acid and 0.5% of leveling agent (ERX) according to mass fraction, then carrying out dyeing, temperature rising and heat preservation treatment according to the following table 1, taking out the polyester fabric and drying the polyester fabric.
Mixing 8: 3: 5: 0.4: mixing 250 parts of acrylic acid trifluoroethylene ester, acrylamide, citric acid, magnesium acetate and water, fully stirring, immersing the dyed polyester fabric into the mixed solution, heating to 80 ℃, keeping the temperature for 1h, taking out the polyester fabric, and drying.
Example 5
The difference from example 2 is that: the dyeing method also comprises a surface pretreatment step of the polyester fabric and a dyeing post-treatment step of the polyester fabric.
A dyeing method of polyester fabric for high-color-fastness luggage fabric comprises the following steps:
dispersing sesbania powder and trehalose in water, wherein the mass ratio of the sesbania powder to the trehalose to the water is 2: 1: 120 of a solvent; then adding nano titanium dioxide particles with the particle size of 50nm, performing ultrasonic treatment, adding succinic anhydride and citric acid, stirring and reacting at 80 ℃ for 3 hours, wherein the mass ratio of sesbania powder to nano titanium dioxide particles to succinic anhydride to citric acid is 10: 0.8: 2: 1, obtaining modified nano titanium dioxide hydrosol; the gram weight is 300g/m2And soaking the polyester fabric into the modified nano titanium dioxide hydrosol in a dark place, keeping the temperature at 30 ℃ for 30min, and then taking out and drying.
And (2) soaking the polyester fabric subjected to surface pretreatment into a dye liquor for dyeing, wherein the bath ratio is 1: and 8, adjusting the pH to be about 5.1, wherein the used dye solution comprises 0.12% of 2BLN disperse blue, 0.24% of S-4RL orange, 0.046% of S-5BL ruby, 0.5% of acetic acid and 0.5% of leveling agent (the model of the company Ludao, ERX) according to the mass fraction, and then carrying out dyeing, temperature rise and heat preservation treatment according to the following table 2.
And (2) mixing the components in a mass ratio of 8: 2: 4: 0.3: mixing 250% of acrylic acid trifluoroethylene ester, acrylamide, citric acid, magnesium acetate and water, fully stirring, immersing the dyed polyester fabric into the mixed solution, heating to 70 ℃, keeping the temperature for 3 hours, taking out the polyester fabric, and drying.
Comparative example 1
The difference from example 3 is that: the post-dyeing treatment step of the polyester fabric is not carried out.
A dyeing method of polyester fabric for high-color-fastness luggage fabric comprises the following steps:
dispersing sesbania powder and trehalose in water, wherein the mass ratio of the sesbania powder to the trehalose to the water is 2: 1: 120 of a solvent; then adding nano titanium dioxide particles with the particle size of 50nm, performing ultrasonic treatment, adding succinic anhydride and citric acid, stirring and reacting at 80 ℃ for 3 hours, wherein the mass ratio of sesbania powder to nano titanium dioxide particles to succinic anhydride to citric acid is 10: 0.8: 2: 1, obtaining modified nano titanium dioxide hydrosol; the gram weight is 300g/m2And soaking the polyester fabric into the modified nano titanium dioxide hydrosol in a dark place, keeping the temperature at 30 ℃ for 30min, and then taking out and drying.
And (3) soaking the polyester fabric subjected to surface pretreatment into a dye solution for dyeing, wherein the bath ratio is 1: and 6, adjusting the pH to be about 4.6, wherein the used dye solution comprises 0.12% of 2BLN disperse blue, 0.24% of S-4RL orange, 0.046% of S-5BL ruby, 0.5% of acetic acid and 0.5% of leveling agent (ERX) in percentage by mass, then carrying out dyeing, temperature rising and heat preservation treatment according to the table 1, taking out the polyester fabric and drying the polyester fabric.
Comparative example 2
The difference from example 3 is that: trehalose is not added in the surface pretreatment step of the polyester fabric
A dyeing method of polyester fabric for high-color-fastness luggage fabric comprises the following steps:
dispersing sesbania powder and trehalose in water, wherein the mass ratio of the sesbania powder to the water is 2: 120 of a solvent; then adding nano titanium dioxide particles with the particle size of 50nm, performing ultrasonic treatment, adding succinic anhydride and citric acid, stirring and reacting at 80 ℃ for 3 hours, wherein the mass ratio of sesbania powder to nano titanium dioxide particles to succinic anhydride to citric acid is 10: 0.8: 2: 1, obtaining modified nano titanium dioxide hydrosol; the gram weight is 300g/m2And soaking the polyester fabric into the modified nano titanium dioxide hydrosol in a dark place, keeping the temperature at 30 ℃ for 30min, and then taking out and drying.
And (2) soaking the polyester fabric subjected to surface pretreatment into a dye liquor for dyeing, wherein the bath ratio is 1: and 6, adjusting the pH to be about 4.6, wherein the used dye solution comprises 0.12% of 2BLN disperse blue, 0.24% of S-4RL orange, 0.046% of S-5BL ruby, 0.5% of acetic acid and 0.5% of leveling agent (ERX) according to mass fraction, then carrying out dyeing, temperature rising and heat preservation treatment according to the following table 1, taking out the polyester fabric and drying the polyester fabric.
Mixing 8: 2: 4: 0.3: mixing 250 parts of acrylic acid trifluoroethylene ester, acrylamide, citric acid, magnesium acetate and water, fully stirring, immersing the dyed polyester fabric into the mixed solution, heating to 70 ℃, preserving heat for 3 hours, taking out the polyester fabric, and drying.
Comparative example 3
The difference from example 3 is that: the surface pretreatment step of the polyester fabric does not add nano titanium dioxide particles.
A dyeing method of polyester fabric for high-color-fastness luggage fabric comprises the following steps:
dispersing sesbania powder and trehalose in water, wherein the mass ratio of the sesbania powder to the trehalose to the water is 2: 1: 120 of a solvent; adding succinic anhydride and citric acid, stirring and reacting at 80 ℃ for 3 hours, wherein the mass ratio of sesbania powder to succinic anhydride to citric acid is 10: 2: 1, obtaining modified hydrosol; the gram weight is 300g/m2And soaking the terylene fabric into the modified hydrosol in a dark place, keeping the temperature at 30 ℃ for 30min, and then taking out and drying.
And (3) soaking the polyester fabric subjected to surface pretreatment into a dye solution for dyeing, wherein the bath ratio is 1: and 6, adjusting the pH to be about 4.6, wherein the used dye solution comprises 0.12% of 2BLN disperse blue, 0.24% of S-4RL orange, 0.046% of S-5BL ruby, 0.5% of acetic acid and 0.5% of leveling agent (ERX) according to mass fraction, then carrying out dyeing, temperature rising and heat preservation treatment according to the following table 1, taking out the polyester fabric and drying the polyester fabric.
And (2) mixing the components in a mass ratio of 8: 2: 4: 0.3: mixing 250 parts of acrylic acid trifluoroethylene ester, acrylamide, citric acid, magnesium acetate and water, fully stirring, immersing the dyed polyester fabric into the mixed solution, heating to 70 ℃, preserving heat for 3 hours, taking out the polyester fabric, and drying.
Comparative example 4
The difference from example 3 is that: in the step of surface pretreatment of the polyester fabric, the particle size of the nano titanium dioxide particles is 500 nm.
A dyeing method of polyester fabric for high-color-fastness luggage fabric comprises the following steps:
dispersing sesbania powder and trehalose in water, wherein the mass ratio of the sesbania powder to the trehalose to the water is 2: 1: 120 of a solvent; then adding nano titanium dioxide particles with the particle size of 500nm, performing ultrasonic treatment, adding succinic anhydride and citric acid, reacting for 3 hours at 80 ℃ while stirring, wherein the mass ratio of sesbania powder to nano titanium dioxide particles to succinic anhydride to citric acid is 10: 0.8: 2: 1, obtaining modified nano titanium dioxide hydrosol; the gram weight is 300g/m2And soaking the polyester fabric into the modified nano titanium dioxide hydrosol in a dark place, keeping the temperature at 30 ℃ for 30min, and then taking out and drying.
And (3) soaking the polyester fabric subjected to surface pretreatment into a dye solution for dyeing, wherein the bath ratio is 1: and 6, adjusting the pH to be about 4.6, wherein the used dye solution comprises 0.12% of 2BLN disperse blue, 0.24% of S-4RL orange, 0.046% of S-5BL ruby, 0.5% of acetic acid and 0.5% of leveling agent (ERX) according to mass fraction, then carrying out dyeing, temperature rising and heat preservation treatment according to the following table 1, taking out the polyester fabric and drying the polyester fabric.
And (2) mixing the components in a mass ratio of 8: 2: 4: 0.3: mixing 250 parts of acrylic acid trifluoroethylene ester, acrylamide, citric acid, magnesium acetate and water, fully stirring, immersing the dyed polyester fabric into the mixed solution, heating to 70 ℃, preserving heat for 3 hours, taking out the polyester fabric, and drying.
Performance testing
Color fastness to rubbing: GB3920-1997
Color fastness to light: GB/T8427-1997
Color fastness to washing: GB/T3921.1-1997;
water stain resistance color fastness: GB/T5713-1997;
average ultraviolet transmittance: and testing the average transmittance of the polyester fabric at the ultraviolet wavelength of 280-400 nm.
TABLE 3 Performance testing of dyed polyester fabrics for each group
Figure BDA0003601545420000091
As shown in Table 1, the color fastness of the polyester fabric can reach the 5-grade European standard (ISO105B02), the added value of the polyester fabric used as the case fabric is higher, and better economic benefit can be obtained. In addition, as can be seen from examples 1 to 5, the surface pretreatment of the polyester fabric before dyeing can improve the dye uptake of the disperse dye, and the nano titanium dioxide also has good ultraviolet-proof functional characteristics and can improve the additional value of the polyester fabric; the dyeing post-treatment step can improve the color fastness of the polyester fabric, low-refractive-index fluorine-containing resin is selected to have a darkening effect on dyed fabrics, and the polyester fabric is endowed with surface hydrophobicity. In addition, combining example 3 and comparative example 1, it can also be shown that this post-dyeing treatment step can further improve the color fastness by enhancing the combination stability and hydrophobicity. Combining example 3 and comparative example 2, the added trehalose has the effect of promoting the dye molecules to enter the interior of the polyester molecules and also helps to improve the color fastness. By combining the embodiment 3 and the comparative examples 3-4, the rough and uneven surface structure formed by the nano titanium dioxide particles can improve the specific surface area and has the effects of deepening and improving the color fastness, the particle size of the nano titanium dioxide particles can influence the surface pretreatment effect of the polyester fabric, and the larger the particle size is, the more adverse the combination stability and the dye dyeing uniformity are, and the color fastness of the polyester is influenced.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.

Claims (10)

1. A dyeing method of polyester fabric for high-color-fastness luggage fabric is characterized by comprising the following steps: soaking the polyester fabric into a dye solution for dyeing, heating up from room temperature at a heating rate of 0.5-1 ℃/min, then carrying out heat preservation treatment at 130-140 ℃ for 20-30 min, and finally cooling to room temperature at a cooling rate of-6 to-1 ℃/min; the dye solution comprises disperse dye, acetic acid and a leveling agent.
2. The dyeing method of the polyester fabric for the high-color-fastness luggage fabric according to claim 1, characterized in that the gram weight of the polyester fabric is 200-400 g/m2
3. The dyeing method of the polyester fabric for the high-color-fastness luggage fabric according to claim 1, characterized in that the pH of the dyeing solution is 4-6.
4. The method for dyeing polyester fabrics for high-color-fastness luggage fabrics according to claim 1, characterized in that the bath ratio of the dyeing solution is 1: 5 to 10.
5. The dyeing method of the polyester fabric for the high-color-fastness luggage fabric according to claim 1, characterized in that the temperature reduction is as follows: the temperature is reduced to 90-100 ℃ from 130-140 ℃ at a cooling rate of-3 to-1 ℃/min, and then the temperature is reduced to room temperature at a cooling rate of-6 to-4 ℃/min.
6. The method for dyeing the polyester fabric for the high-color-fastness luggage fabric according to any one of claims 1 to 5, characterized in that the dyeing method further comprises a step of surface pretreatment of the polyester fabric and a step of post-dyeing treatment of the polyester fabric.
7. The method for dyeing polyester fabrics used for high-color-fastness luggage fabrics according to claim 6, characterized in that the surface pretreatment step of the polyester fabrics comprises: dispersing sesbania powder and trehalose in water, adding nano titanium dioxide particles, performing ultrasonic treatment, adding succinic anhydride and citric acid, stirring while reacting for 2-6 hours at 60-90 ℃, and thus obtaining a modified nano titanium dioxide hydrosol; and (3) soaking the polyester fabric into the modified nano titanium dioxide hydrosol in a dark place, keeping the temperature at 30-40 ℃ for 20-40 min, and then taking out and drying.
8. The dyeing method of polyester fabric for high-color-fastness luggage fabric according to claim 7, characterized in that the particle size of the nano titanium dioxide particles is not more than 100 nm; the mass ratio of the sesbania powder to the trehalose to the water is 1-3: 0.5-1.5: 100 to 150 parts; the mass ratio of the sesbania powder to the nano titanium dioxide particles to the succinic anhydride to the citric acid is 10: 0.4-1: 1-3: 0.5 to 2.
9. The method for dyeing the polyester fabric for the high-color-fastness luggage fabric according to claim 6, wherein the dyeing post-treatment step of the polyester fabric comprises the following steps: and (3) soaking the dyed polyester fabric into a mixed solution of trifluoroethylene acrylate, acrylamide, citric acid, magnesium acetate and water, heating to 70-80 ℃, preserving heat for 1-3 hours, and then taking out the polyester fabric and drying.
10. The dyeing method of the polyester fabric for the high-color-fastness luggage fabric, according to claim 9, is characterized in that the mass ratio of the trifluoroethylene acrylate, the acrylamide, the citric acid, the magnesium acetate and the water is 5-10: 1-4: 2-5: 0.1-1: 200 to 300.
CN202210405215.6A 2022-04-18 2022-04-18 Dyeing method of polyester fabric for high-color-fastness luggage fabric Pending CN114763678A (en)

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Publication number Priority date Publication date Assignee Title
CN102877326A (en) * 2012-10-15 2013-01-16 东华大学 Method for preparing polyester luggage material with light and perspiration fastness
CN104878618A (en) * 2015-05-21 2015-09-02 互太(番禺)纺织印染有限公司 Method for dyeing superfine terylene fabric
CN105200812A (en) * 2015-10-20 2015-12-30 互太(番禺)纺织印染有限公司 Dyeing process of using dispersal fluorescent dye to dye super-fine polyester elastic fabric
CN111350084A (en) * 2020-03-11 2020-06-30 嘉兴市天伦纳米染整有限公司 Terylene four-side elastic high-fastness dyeing processing technology
CN112981952A (en) * 2021-03-02 2021-06-18 浙江航民股份有限公司 Method for improving dyeing depth and color fastness of terylene through graft polymerization

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102877326A (en) * 2012-10-15 2013-01-16 东华大学 Method for preparing polyester luggage material with light and perspiration fastness
CN104878618A (en) * 2015-05-21 2015-09-02 互太(番禺)纺织印染有限公司 Method for dyeing superfine terylene fabric
CN105200812A (en) * 2015-10-20 2015-12-30 互太(番禺)纺织印染有限公司 Dyeing process of using dispersal fluorescent dye to dye super-fine polyester elastic fabric
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